Guys so i have to make my own CAD inspired by the OX because the extrusion that is available here locally is 40x80mm and 20x80mm and 20x40mm so i have to work with those making me unable to use the DXF files posted on the forums. So now what i want to inquire about is how much in mm do i offset the V-wheels from each other ? i inspected the designs posted on the forums and they are roughly 20mm + (The V-SLOT Height) but when i do that i can't mate the wheels to the V-Slot in solidworks. the V-Wheel Protrudes a little bit more than that. i want to know how much of a tolerance should i have in order to have smooth movement. would be great if you could help thanks in advance.